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var(--line);background:var(--card)}.roadmap-exam-link{min-height:78px;margin-left:0;position:relative}.roadmap-exam-link:before{border:4px solid var(--bg);background:var(--accent);content:"";border-radius:50%;width:18px;height:18px;position:absolute;left:-33px}@media (width<=700px){.roadmap-list{gap:12px;padding-left:34px}.roadmap-list:before{left:15px}.roadmap-stage-head{min-height:78px;padding:12px}.roadmap-stage-icon{width:38px;height:38px;left:-50px}.roadmap-stage-progress{display:none}.roadmap-stage-body{margin-left:9px;padding-left:14px}.roadmap-lesson:before{left:-21px}.roadmap-exam-link:before{left:-28px}}.roadmap-page{width:min(100%,752px);max-width:752px;padding-top:18px}.roadmap-compact-head h1{letter-spacing:-.035em;margin:0 0 3px;font-size:27px;line-height:1.2}.roadmap-compact-head p{color:var(--muted);margin:0 0 16px;font-size:12px;line-height:1.55}.roadmap-tabs{grid-template-columns:repeat(6,minmax(0,1fr));gap:5px;margin-bottom:8px;display:grid}.roadmap-tabs button{border:1px solid var(--line);background:var(--card);min-width:0;min-height:48px;color:var(--text);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:5px 2px;display:flex}.roadmap-tabs button:hover{border-color:var(--accent)}.roadmap-tabs button.active{border:2px solid var(--accent)}.roadmap-tabs b{text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-size:10px;overflow:hidden}.roadmap-tabs small{color:var(--muted);font-size:8px}.roadmap-current-caption{color:var(--muted);text-align:center;margin:9px 0 0;font-size:10px}.roadmap-map-scroll{scrollbar-width:thin;overflow-x:auto}.roadmap-map{width:100%;min-width:360px;height:auto;display:block;overflow:visible}.map-path{fill:none;stroke:var(--line);stroke-width:9px;stroke-linecap:round;stroke-dasharray:2 13}.map-node-group{cursor:pointer;outline:none}.map-lesson-node{fill:var(--bg);stroke:var(--line);stroke-width:1.8px}.map-node-number{fill:var(--muted);font:600 13px 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7px;font-size:10px}.roadmap-selected-panel .btn:disabled{cursor:not-allowed}.roadmap-separate{border:0;margin:12px 0 0;padding:10px 0 16px}.roadmap-separate .eyebrow{margin-bottom:6px}.roadmap-separate>div{gap:7px}.roadmap-separate .btn{min-height:30px;padding:5px 10px;font-size:10px}[data-theme=dark] .roadmap-page{--bg:#10151d;--card:#1a212c;--text:#eaeef4;--muted:#9aa6b8;--line:#344052;--accent:#93b1ee;--accent-soft:#1c2b4a;--bad:#ef7a69;--ok:#6fd0c0;--ok-bg:#16352f}[data-theme=modern] .roadmap-page{--bg:#f4f6f8;--card:#fff;--text:#17202e;--muted:#667184;--line:#d3d9e1;--accent:#2b4a8a;--accent-soft:#e3eaf8;--bad:#c8402f;--ok:#17766a;--ok-bg:#dff2ee}@media (width<=560px){.roadmap-page{padding-top:14px}.roadmap-compact-head h1{font-size:23px}.roadmap-compact-head p{font-size:10px}.roadmap-tabs{gap:3px}.roadmap-tabs button{min-height:43px}.roadmap-tabs b{font-size:8px}.roadmap-tabs small{font-size:7px}.roadmap-map{min-width:360px}}.roadmap-compact-head{margin:0 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h1{margin:0;font-size:clamp(24px,4vw,34px)}.mastery-study-head>span{color:var(--muted)}.mastery-progress{color:var(--muted);align-items:center;gap:14px;margin-bottom:22px;font-weight:700;display:flex}.mastery-progress div{background:var(--line);border-radius:20px;flex:1;height:10px;overflow:hidden}.mastery-progress i{background:var(--accent);height:100%;transition:width .3s;display:block}.mastery-question,.mastery-finish{padding:clamp(22px,5vw,46px)}.mastery-question-top{color:var(--muted);justify-content:space-between;align-items:center;gap:12px;font-size:14px;display:flex}.mastery-question h2{margin:38px 0 55px;font-size:clamp(24px,4vw,40px);line-height:1.6}.mastery-level{border-radius:99px;padding:5px 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b{color:var(--muted)}.mastery-feedback{background:var(--accent-soft);border-radius:12px;margin-top:24px;padding:18px}.mastery-feedback.wrong{background:color-mix(in srgb,var(--bad) 12%,var(--card))}.mastery-feedback p{margin:6px 0 14px}.mastery-feedback .btn{align-items:center;gap:8px;display:inline-flex}.mastery-finish h2{margin-top:0}@keyframes mastery-pop{50%{transform:scale(1.015)}}@keyframes mastery-shake{25%{transform:translate(-5px)}75%{transform:translate(5px)}}@media (width<=600px){.mastery-answers{grid-template-columns:1fr}.mastery-question h2{margin:28px 0 36px}}@media (prefers-reduced-motion:reduce){.mastery-answer.correct,.mastery-answer.wrong{animation:none}.mastery-progress i{transition:none}}.roadmap-page{--mastery-0:#9ca9a1;--mastery-1:#e4aa36;--mastery-2:#4a9bd9;--mastery-3:var(--ok)}.roadmap-levels{color:var(--muted);flex-wrap:wrap;gap:4px 12px;margin:8px 0;font-size:11px;display:flex}.roadmap-levels span{align-items:center;gap:4px;display:inline-flex}.roadmap-levels i{border-radius:50%;width:8px;height:8px}:root,[data-theme=modern]{--bg:#f7faf4;--card:#fff;--text:#263b29;--muted:#5d7060;--line:#dce8d8;--accent:#347c14;--accent-soft:#eaf7df;--hero-bg:#286f20;--hero-muted:#e3f7d8;--ok:#287b2c;--bad:#b53e3e;--shadow:0 6px 20px #305f2712;--play-green:#75ce27;--play-green-edge:#4e9e15;--play-green-ink:#17360a}[data-theme=dark]{--bg:#142119;--card:#1d3023;--text:#eef7e9;--muted:#b2c9b0;--line:#38513a;--accent:#a0e56d;--accent-soft:#304d27;--hero-bg:#285b25;--hero-muted:#d9f4d0;--ok:#99df79;--bad:#ffaaa3;--play-green:#8adf46;--play-green-edge:#559b24;--play-green-ink:#18300d}[data-theme=modern] .roadmap-page,[data-theme=dark] .roadmap-page{--bg:inherit;--card:inherit;--text:inherit;--muted:inherit;--line:inherit;--accent:inherit;--accent-soft:inherit;--bad:inherit;--ok:inherit;--ok-bg:var(--accent-soft)}.sidebar-brand-mark{background:var(--play-green);color:var(--play-green-ink);box-shadow:0 3px 0 var(--play-green-edge)}.btn-primary,[data-theme=dark] 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.map-end{stroke:var(--accent);stroke-width:3px}.roadmap-compact-head{flex-wrap:wrap;align-items:center;column-gap:14px;display:flex}.roadmap-eyebrow,.roadmap-compact-head p{flex-basis:100%}.roadmap-compact-head h1{margin-right:auto}.roadmap-countdown{margin:0}@media (prefers-reduced-motion:reduce){.map-node-group[aria-pressed=true] .map-lesson-node,.map-node-group[aria-pressed=true] .map-checkpoint,.map-node-group[aria-pressed=true] .map-end{transition:none}}.roadmap-page{--mastery-0:#bd4f45;--mastery-unseen:var(--line)}[data-theme=dark] .roadmap-page{--mastery-0:#f08c7e}.unseen-dot{background:var(--mastery-unseen);border:1px solid var(--muted)}.stage-level-bar{background:var(--mastery-unseen)}.stage-level-legend,.roadmap-levels,.roadmap-tabs b,.roadmap-tabs small{font-size:13px}.roadmap-tabs button{min-height:58px}.map-path{stroke-linejoin:round}.roadmap-round{font-size:13px!important}@media (width>=1200px){.roadmap-left-column{max-height:calc(100vh - 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